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engine: common: fix WriteUBitLong/ReadUBitLong

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This commit is contained in:
Alibek Omarov
2026-04-21 23:33:35 +05:00
committed by a1batross
parent 3ddd1e2448
commit 82c2ca53fb
1 changed files with 10 additions and 6 deletions
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16
engine/common/net_buffer.c
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@@ -321,8 +321,10 @@ void MSG_WriteUBitLong( sizebuf_t *sb, uint curData, int numbits )
}
iCurBitMasked = iCurBit & 31;
((uint32_t *)sb->pData)[iDWord] &= BitWriteMasks[iCurBitMasked][nBitsLeft-1];
((uint32_t *)sb->pData)[iDWord] |= curData << iCurBitMasked;
uint32_t dword = LittleLong(((uint32_t *)sb->pData)[iDWord] );
dword &= BitWriteMasks[iCurBitMasked][nBitsLeft-1];
dword |= curData << iCurBitMasked;
((uint32_t *)sb->pData)[iDWord] = LittleLong( dword );
// did it span a dword?
nBitsWritten = 32 - iCurBitMasked;
@@ -334,8 +336,10 @@ void MSG_WriteUBitLong( sizebuf_t *sb, uint curData, int numbits )
curData >>= nBitsWritten;
iCurBitMasked = iCurBit & 31;
((uint32_t *)sb->pData)[iDWord+1] &= BitWriteMasks[iCurBitMasked][nBitsLeft-1];
((uint32_t *)sb->pData)[iDWord+1] |= curData << iCurBitMasked;
uint32_t dword2 = LittleLong(((uint32_t *)sb->pData)[iDWord+1] );
dword2 &= BitWriteMasks[iCurBitMasked][nBitsLeft-1];
dword2 |= curData << iCurBitMasked;
((uint32_t *)sb->pData)[iDWord+1] = LittleLong( dword2 );
}
sb->iCurBit += numbits;
}
@@ -593,7 +597,7 @@ uint MSG_ReadUBitLong( sizebuf_t *sb, int numbits )
// Read the current dword.
idword1 = sb->iCurBit >> 5;
dword1 = ((uint *)sb->pData)[idword1];
dword1 = LittleLong(((uint *)sb->pData)[idword1] );
dword1 >>= ( sb->iCurBit & 31 ); // get the bits we're interested in.
sb->iCurBit += numbits;
@@ -608,7 +612,7 @@ uint MSG_ReadUBitLong( sizebuf_t *sb, int numbits )
else
{
int nExtraBits = sb->iCurBit & 31;
uint dword2 = ((uint *)sb->pData)[idword1+1] & ExtraMasks[nExtraBits];
uint dword2 = LittleLong(((uint *)sb->pData)[idword1+1] ) & ExtraMasks[nExtraBits];
// no need to mask since we hit the end of the dword.
// shift the second dword's part into the high bits.